磁轉速計 的英文怎麼說

中文拼音 [cízhuǎnsùjì]
磁轉速計 英文
magnetic tachometer
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 轉 : 轉構詞成分。
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 轉速 : speed; revolution; rotation rate; speed of revolution; rotating speed; rotational speed轉速指示器...
  1. The controller includes two control loops which are outer speed loop ( variable parameter pi adjustment ) and inner current loop ( single - chop current delta - control ). in order to improve system performances, design of digital control system based on dsp is presented. the proportional parameter and integral parameter can be obtained through the design

    整個系統採用變pi參數轉速調節（外環）與單斬電流滯環調節（內環）相結合的雙閉環控制方式，為了得到既快速又穩定的恆速系統，本文還給出了基於dsp的雙凸極永磁電機數字控制系統的設計方案，通過此設計方案可以得到轉速環的比例參數kp和積分參數ki的參考值。
  2. The inspection equipments including speedometer odometer tester and electron tachometer tester all of them are developed and designed by ourselves have reached the advanced quality at home and the same to the magnetizer demagnetizer. all of them can be provided to customer with our quality products together

    公司自主設計開發製造的車速里程錶測試儀和電子轉速表測試儀充磁機退磁器等具有國內先進水平，可隨儀表產品一起滿足顧客的需求。
  3. Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively

    本文對大圓環直線感應電機進行了深入細致研究，內容包括： （ 1 ）本文採用有限長行波面電流作用於有限長鐵芯上的模型，引用了氣隙磁場一維解，研究了單層繞組磁場，奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較，簡單介紹了二維解； （ 2 ）用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析，並分析了結果； （ 3 ）用軟體進行了額定電壓下的瞬態分析，得到了轉矩，位移，轉速隨時間變化曲線圖，利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較，採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證，由實驗測得了三相電流波形，並與計算結果進行了比較，對其不對稱性進行了定性分析。
  4. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  5. A high - speed generator is much different from a low - speed one not only on the mechanical aspect but also on the electrical - magnetic aspect. the main content of this paper are focused on the followings : first of all, a series of problems caused by the high speed are researched and the relative solutions are given out about the stator, the research focuses on stator losses, winding type, cooling system and so on

    高速發電機轉速很高，無論在機械性能方面，還是電磁性能方面都與低速電機有較大不同，本文主要內容就是圍繞高速永磁發電機的設計特點從以下幾個方面展開的：首先，對高速電機因高轉速引起的一系列問題進行了研究，提出了解決相關問題的措施。
  6. The thesis analyse the error and the feasibility of the system. because the precision of position and direction is related with the precision of the heading and the distance, the thesis discuss the method of obtaining the distance using milemeter, water milemeten engine ' s rotate speed and accelerometer, and the method of obtaining the heading using the combination of the gyrocompass and the digital compass. then the thesis introduce the details of the system realization, include the hardware and the software

    由於航位推算的精度與航程和航向的精度直接相關，因此，論文討論了用里程計、水速表、引擎轉速或加速度計等獲取里程的方法，用航向保持器和數字磁羅盤組合的方法獲取航向角的方法（初始尋北由數字磁羅盤來完成） ，這為採用數據融合方法提高航程和航向精度打下了基礎。
  7. This paper also use non - linear feedback decoupling theory to decouple die vector - control close - loop system into linear decoupling of rotor speed and rotor flux linkage subsystems. the speed regulator and flux linkage regulator of these two linear subsystems can be designed with classical linear theory

    本文同時還應用非線性反饋解耦理論將矢量控制的閉環系統分解為線性化的轉速子系統和轉子磁鏈子系統，兩個子系統中的速度調節器和磁鏈調節器可按線性理論設計。
  8. When designed, the high - speed generator with a permanent magnet ( pm ) rotor is preferred because of its simple structure, without excitation high energy density of the pm material

    永磁轉子式高速發電機由於具有結構簡單、不需勵磁、效率高和能量密度大等優點成為高速發電機設計時的首選。
  9. From single - phase power supply, the shocks have driven two of the permanent cigang rotor rotary rotary magnetic field, and reducer with calculated design to export different rotational speed and moment, with the corresponding reduction in rotational speed increase moment

    由單相電源供電，振蕩產生兩相旋轉磁場驅動永久磁鋼轉子旋轉，與減速器配合，根據計算設計可以輸出不同的轉速和力矩，隨著轉速減少的相應的力矩增加。
  10. Aiming at the uncertainty brought by the rotating inertia and motor torque coefficient during the field weakening process, the mixed sensitivity robust controller based on inner mode principle is designed

    在此基礎上，針對實際直流電機速度控制系統弱磁調速過程中存在的電機轉矩系數變化和轉動慣量等因素引起的參數不確定性特性，應用內模原理，設計了混合靈敏度魯棒控制器。
  11. In the dissertation, a novel hybrid excitation constant voltage synchronous generator is adopted to improve the system performance, which takes the advantages of both electrical excitation and permanent magnet machines. a parted configuration is presented in order to design the structure of the generator. the adaptive digital adjustment is settled in principle using the single chip microcomputer 80c31 as the control core of the voltage regulator and adopting the proportion - integral - differential control as the control arithmetic, then a sample is made

    論文對同步發電機的工作原理、性能特點、電機本體以及電壓調節器的硬體和軟體設計進行了研究，針對稀土永磁同步發電機變載、變轉速情況下輸出電壓不可調的不足之處，採用一種新穎的電機型式? ?自適應復合勵磁恆壓同步發電機，綜合了永磁發電機和電勵磁發電機的優點，提出一種磁路分開的結構進行電機本體的設計，並選用單片機80c31作為電壓調節器的控制核心，比例?積分?微分控制（ pid ）作為其控制演算法，從原理上較好地解決了其電壓的自動數字調節，並試制了一臺樣機。
  12. The observer makes use of motor parameters to estimate speed, but these parameters ( stator and rotor resistance, magnetizing inductance ) will vary because of the change of environmental temperature, iron loss and main flux saturation. so parameter variation will lead to the error of estimation, the purpose of this paper is to study the influence and the compensation of parameter variation

    因為觀測器在估計轉速時利用的是電機的額定參數，而電機的參數（定子電阻、轉子電阻、勵磁電感）由於環境溫度的變化、鐵心損耗和主磁飽和的影響將發生變化，所以必然有估計誤差產生。
  13. Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail

    針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向，本論文重點做了以下幾個方面的工作，目的在於提高dtc系統的綜合性能： （ 1 ）提出一種新型的速度磁鏈觀測器，新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度，並且根據popov超穩定性理論推導出轉速的新型自適應收斂律； （ 2 ）改善系統的低速運行性能，主要從提高低速時對定子磁鏈的估計精度入手，提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數； （ 3 ）採用數字信號處理器dsp實現系統全數字化硬體控制，結合ti公司生產的tms320lf2407晶元，設計了直接轉矩控制系統的實驗裝置； （ 4 ）提出了基於sercos總線網路化分散式的直接轉矩控制系統， sercos （ serialrealtimecommunicationsystem ）是目前最適合同步和協調控制的串列實時通信協議； （ 5 ）基本勾勒出整個控制系統的硬體和軟體設計基本框架，詳細描述一些實驗中的具體的細節問題。
  14. In order to decrease the cost, simplify the structure of the pmsm servo system and at the same has no effect on the system performance, this paper uses hall element as the position sensor, which has very low solution but very low cost, and in order to realize sinusoidal current drive of pmsm, this paper presents a new rotor position estimator based on flux estimation

    為了降低成本，簡化系統，本文採用低解析度的霍爾元件作為pmsm伺服系統的位置傳感器，採用基於磁鏈觀測法的低解析度位置傳感器控制技術，來估計電機轉子的實時位置和轉速，實現電流的正弦換向，減小轉矩脈動。
  15. We discuss the influence on the flux and torque when the multi - voltage space vector is applied on the motor. then the strategy of producing hexagon flux or circle flux is proposed. it is believed that, in order to control the torque optimally in dtc system, the stator current needs to be observed predictably

    論文在闡述異步電動機的直接轉矩控制原理的基礎上，詳細分析了多電壓空間矢量對磁鏈和轉矩的影響，給出了六邊形磁鏈和圓形磁鏈以及定子電流預測的設計方法，提出了一種新的轉速環控制方法。
  16. Finally, the principle of phase - locked - loop for speed control is discussed. the control methods of torque and magnetic levitation force are studied experimentally on a prototype bearingless motor. based on the analysis of shortcomings of the analog control system, a digital control system is proposed

    分析了採用鎖相環對電機轉速進行閉環控制的原理；設計了磁懸浮力的模擬控制器並對磁懸浮血泵電機進行了實驗研究；針對模擬控制系統存在的缺點，本文設計了一種數字控制系統。
  17. Characters of the flow field of molten metal in mhd caster are s imulated and analyzed by means of numerical simulation. relationship between flow field of molten metal and the number of magnet poles, arrangement of magnet pole s, rotating velocity of magnetic field as well as helical arrangement of permanen t magnets is revealed. it can be used as reference for optimizing design of perma nent caster

    利用數值模擬對不同磁場條件下的永磁鑄機金屬液流場特徵進行了模擬分析；揭示了金屬液流場與永磁體極數、磁極排布方式、磁場旋轉速率以及永磁體螺旋式排布之間的關系，為永磁鑄機的優化設計提供了參考依據。
  18. The contents of the thesis are as follows : ( 1 ) all the contents : magnetism sense fuel injector is designed. needle valve lift signal, rotation speed signal and pressure signal are collected and processed. circuit is designed. programme is programmed. ( 2 ) contents studied : the item is completed

    本課題的研究內容有: （ 1 ）本課題所要研究的內容包括:磁感噴油器的設計;針閥升程信號、主軸轉速信號、噴油壓力信號的採集與處理;系統硬體電路的設計;軟體編程等。
  19. Ganfa has over 50 years experience of designing and manufacturing and has many items of patent techninque. the synchronous generators and permanent magnet generators which are manufactured with advanced technology and excellent machining equipement, will be able to meet the requirement of different technical condition which matched with various type turbines. ganfa has manufactured the generators of 0. 1 to 20mw in capacity which have been put into operation at present and owns the capability to manufacture the following generators : the capacity per unit up to 180mw, the stator outer diameter of generator up to 9, 000mm, the speed of vertical type generator up to 750r min, and thespeed of horizontal type generator up to 1, 500r min, both the b - grade and f - grade insulation class, the terminal voltage can up to 13. 8kv. ganfa manufactured 34, 500kw water turbine generator sets for the donghewan power station, yongchang, gansu, china which is located in 2. 868. 5m height above sea level, and has successfully solved the difficult problems such as plateau corona - shielding. ganfa is equipped with the generator test station and insulation material laboratory which are advanced test facilites and testing means to make each item electrical performance of products meet designing requirements from purchasing to delivering

    公司具有50年的設計製造經驗，擁有多項專利技術，生產的同步發電機永磁機技術工藝先進，製造精良，能滿足與各式水輪機配套的不同技術條件要求。目前公司已製造投產的發電機容量范圍為0 . 120mw ，具備生產單擊容量50mw的能力，發電機機座號最大可達9000mm ，立式機最高轉速750r min ，臥式機最高轉速達1500r min ，絕緣等級有b級和f級，圈式線圈最高電壓達13 . 8kv ，公司製造的甘肅永昌東河水電站34500kw水輪發電機組，海拔為2868 . 5m ，成功解決了高原防暈等難題。公司擁有電機試驗站絕緣材料試驗室等先進的實驗室設施和測試手段，使產品從原材料進產，到成品出產的各項電器性能測試均能滿足設計要求。
  20. After studying a lot of documents, we present a speed - estimating method for direct torque control system. this method is based on the theory of dtc, but it takes advantage of the convenient of both the theory of dtc and the theory of foc. we need only to sample the stator ' s current to estimate the speed of the rotor, at the same time the integration of the voltage is avoided

    在研究大量文獻的基礎上提出了一種適用於交流電機dtc控制系統的轉速計算方法，該方法以dtc控制為中心，結合dtc和定子磁場定向和轉子磁場定向各自的特點，綜合利用各自的有利之處，只需測量定子電流，避免了對電壓積分，思路清晰，計算簡單。
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